12400064142 has 16 divisors (see below), whose sum is σ = 24801348432. Its totient is φ = 4133151360.

The previous prime is 12400064137. The next prime is 12400064167. The reversal of 12400064142 is 24146000421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131688 + ... + 205284.

It is an arithmetic number, because the mean of its divisors is an integer number (1550084277).

Almost surely, 2^12400064142 is an apocalyptic number.

12400064142 is an abundant number, since it is smaller than the sum of its proper divisors (12401284290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12400064142 is a wasteful number, since it uses less digits than its factorization.

12400064142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101683.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12400064142 its reverse (24146000421), we get a palindrome (36546064563).

The spelling of 12400064142 in words is "twelve billion, four hundred million, sixty-four thousand, one hundred forty-two".